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poky/meta/recipes-devtools/elfutils/files/0001-Use-fallthrough-attribute.patch
Joshua Watt 84bcd1fd58 elfutils: Use fallthrough attribute 
Patches elfutils to use the fallthrough attribute instead of comments to
satisfy the -Wimplicit-fallthrough warning. Using comments is
insufficient when compiling remotely with Icecream because the file gets
pre-processed locally, removing the comments

(From OE-Core rev: cd44cee91b5b17ddf617950d84513d481ab34f58)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-02-16 18:05:38 +00:00

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From 5cb883f67d00a63531ef195c242763d36b1905ca Mon Sep 17 00:00:00 2001
From: Joshua Watt <Joshua.Watt@garmin.com>
Date: Fri, 9 Feb 2018 12:46:38 -0600
Subject: [PATCH] Use fallthrough attribute
Use __attribute__ ((fallthrough)) to indicate switch case fall through
instead of a comment. This ensure that the fallthrough warning is not
triggered even if the file is pre-processed (hence stripping the
comments) before it is compiled.
The actual fallback implementation is hidden behind a FALLBACK macro in
case the compiler doesn't support it.
Finally, the -Wimplict-fallthrough warning was upgraded to only allow
the attribute to satisfy it; a comment alone is no longer sufficient.
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Upstream-Status: Submitted [1]
[1] https://sourceware.org/ml/elfutils-devel/2018-q1/msg00027.html
---
backends/aarch64_retval.c | 2 +-
backends/alpha_retval.c | 4 ++--
backends/arm_regs.c | 2 +-
backends/arm_retval.c | 2 +-
backends/i386_regs.c | 2 +-
backends/i386_retval.c | 4 ++--
backends/ia64_retval.c | 2 +-
backends/linux-core-note.c | 2 +-
backends/m68k_retval.c | 4 ++--
backends/mips_retval.c | 4 ++--
backends/parisc_retval.c | 5 +++--
backends/ppc64_retval.c | 6 +++---
backends/ppc_regs.c | 2 +-
backends/ppc_retval.c | 4 ++--
backends/s390_retval.c | 4 ++--
backends/sh_retval.c | 2 +-
backends/sparc_retval.c | 2 +-
backends/tilegx_retval.c | 4 ++--
backends/x86_64_regs.c | 2 +-
backends/x86_64_retval.c | 2 +-
config/eu.am | 4 +++-
configure.ac | 6 ++++++
lib/eu-config.h | 7 +++++++
libcpu/i386_disasm.c | 2 +-
libcpu/i386_parse.c | 4 ++--
libdw/cfi.c | 4 ++--
libdw/dwarf_frame_register.c | 2 +-
libdwfl/dwfl_report_elf.c | 2 +-
libdwfl/frame_unwind.c | 2 +-
libebl/eblobjnote.c | 2 +-
libelf/elf32_updatenull.c | 2 +-
libelf/elf_begin.c | 4 ++--
libelf/elf_cntl.c | 2 +-
src/addr2line.c | 2 +-
src/elfcompress.c | 2 +-
src/elflint.c | 8 ++++----
src/objdump.c | 2 +-
src/readelf.c | 8 ++++----
src/strings.c | 2 +-
tests/backtrace.c | 2 +-
tests/elfstrmerge.c | 3 ++-
41 files changed, 75 insertions(+), 58 deletions(-)
diff --git a/backends/aarch64_retval.c b/backends/aarch64_retval.c
index 68de307..1308340 100644
--- a/backends/aarch64_retval.c
+++ b/backends/aarch64_retval.c
@@ -292,7 +292,7 @@ aarch64_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
assert (count > 0);
if (count <= 4)
return pass_hfa (locp, base_size, count);
- /* Fall through. */
+ FALLTHROUGH;
case 1:
/* Not a HFA. */
diff --git a/backends/alpha_retval.c b/backends/alpha_retval.c
index 53dbfa4..d9bae3b 100644
--- a/backends/alpha_retval.c
+++ b/backends/alpha_retval.c
@@ -85,7 +85,7 @@ alpha_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
@@ -131,7 +131,7 @@ alpha_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
}
}
- /* Else fall through. */
+ FALLTHROUGH;
case DW_TAG_structure_type:
case DW_TAG_class_type:
diff --git a/backends/arm_regs.c b/backends/arm_regs.c
index 4ee1039..418c931 100644
--- a/backends/arm_regs.c
+++ b/backends/arm_regs.c
@@ -81,7 +81,7 @@ arm_register_info (Ebl *ebl __attribute__ ((unused)),
* but gcc maps FPA registers here
*/
regno += 96 - 16;
- /* Fall through. */
+ FALLTHROUGH;
case 96 + 0 ... 96 + 7:
*setname = "FPA";
*type = DW_ATE_float;
diff --git a/backends/arm_retval.c b/backends/arm_retval.c
index 8687eab..313e4eb 100644
--- a/backends/arm_retval.c
+++ b/backends/arm_retval.c
@@ -90,7 +90,7 @@ arm_return_value_location_ (Dwarf_Die *functypedie, const Dwarf_Op **locp,
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
diff --git a/backends/i386_regs.c b/backends/i386_regs.c
index fd963a6..7ec93bb 100644
--- a/backends/i386_regs.c
+++ b/backends/i386_regs.c
@@ -92,7 +92,7 @@ i386_register_info (Ebl *ebl __attribute__ ((unused)),
case 5:
case 8:
*type = DW_ATE_address;
- /* Fallthrough */
+ FALLTHROUGH;
case 0 ... 3:
case 6 ... 7:
name[0] = 'e';
diff --git a/backends/i386_retval.c b/backends/i386_retval.c
index 4aa646f..32fec72 100644
--- a/backends/i386_retval.c
+++ b/backends/i386_retval.c
@@ -85,7 +85,7 @@ i386_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
@@ -123,7 +123,7 @@ i386_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
if (size <= 8)
return nloc_intregpair;
}
- /* Fallthrough */
+ FALLTHROUGH;
case DW_TAG_structure_type:
case DW_TAG_class_type:
diff --git a/backends/ia64_retval.c b/backends/ia64_retval.c
index dcd5f28..03ea4d8 100644
--- a/backends/ia64_retval.c
+++ b/backends/ia64_retval.c
@@ -260,7 +260,7 @@ ia64_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
diff --git a/backends/linux-core-note.c b/backends/linux-core-note.c
index 67638d7..5f06c89 100644
--- a/backends/linux-core-note.c
+++ b/backends/linux-core-note.c
@@ -226,7 +226,7 @@ EBLHOOK(core_note) (const GElf_Nhdr *nhdr, const char *name,
if (memcmp (name, "CORE", nhdr->n_namesz) == 0)
break;
/* Buggy old Linux kernels didn't terminate "LINUX". */
- /* Fall through. */
+ FALLTHROUGH;
case sizeof "LINUX":
if (memcmp (name, "LINUX", nhdr->n_namesz) == 0)
diff --git a/backends/m68k_retval.c b/backends/m68k_retval.c
index c68ed02..a653ba3 100644
--- a/backends/m68k_retval.c
+++ b/backends/m68k_retval.c
@@ -92,7 +92,7 @@ m68k_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
@@ -135,7 +135,7 @@ m68k_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
if (size <= 8)
return nloc_intregpair;
}
- /* Fallthrough */
+ FALLTHROUGH;
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
diff --git a/backends/mips_retval.c b/backends/mips_retval.c
index 57487bb..c6e1ffe 100644
--- a/backends/mips_retval.c
+++ b/backends/mips_retval.c
@@ -306,7 +306,7 @@ mips_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = dwarf_tag (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
@@ -389,7 +389,7 @@ mips_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
}
}
- /* Fallthrough to handle large types */
+ FALLTHROUGH; /* Fallthrough to handle large types */
case DW_TAG_array_type:
large:
diff --git a/backends/parisc_retval.c b/backends/parisc_retval.c
index df7ec3a..1f1e91a 100644
--- a/backends/parisc_retval.c
+++ b/backends/parisc_retval.c
@@ -116,7 +116,7 @@ parisc_return_value_location_ (Dwarf_Die *functypedie, const Dwarf_Op **locp, in
typedie = dwarf_formref_die (attr, &die_mem);
tag = dwarf_tag (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
@@ -167,6 +167,7 @@ parisc_return_value_location_ (Dwarf_Die *functypedie, const Dwarf_Op **locp, in
/* Else fall through. */
}
+ FALLTHROUGH;
case DW_TAG_structure_type:
case DW_TAG_class_type:
@@ -189,7 +190,7 @@ parisc_return_value_location_ (Dwarf_Die *functypedie, const Dwarf_Op **locp, in
*locp = loc_aggregate;
return nloc_aggregate;
#endif
- /* fall through. */
+ FALLTHROUGH;
}
}
diff --git a/backends/ppc64_retval.c b/backends/ppc64_retval.c
index a251983..eb1c11e 100644
--- a/backends/ppc64_retval.c
+++ b/backends/ppc64_retval.c
@@ -96,7 +96,7 @@ ppc64_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
@@ -141,7 +141,7 @@ ppc64_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
return nloc_intreg;
}
- /* Else fall through. */
+ FALLTHROUGH;
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
@@ -161,7 +161,7 @@ ppc64_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
return nloc_vmxreg;
}
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_string_type:
if (dwarf_aggregate_size (typedie, &size) == 0 && size <= 8)
diff --git a/backends/ppc_regs.c b/backends/ppc_regs.c
index c2d5011..43d2534 100644
--- a/backends/ppc_regs.c
+++ b/backends/ppc_regs.c
@@ -140,7 +140,7 @@ ppc_register_info (Ebl *ebl __attribute__ ((unused)),
case 100:
if (*bits == 32)
return stpcpy (name, "mq") + 1 - name;
- /* Fallthrough */
+ FALLTHROUGH;
case 102 ... 107:
name[0] = 's';
name[1] = 'p';
diff --git a/backends/ppc_retval.c b/backends/ppc_retval.c
index b14a99f..39b42da 100644
--- a/backends/ppc_retval.c
+++ b/backends/ppc_retval.c
@@ -108,7 +108,7 @@ ppc_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
@@ -172,7 +172,7 @@ ppc_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
return nloc_intregquad;
}
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_structure_type:
case DW_TAG_class_type:
diff --git a/backends/s390_retval.c b/backends/s390_retval.c
index a927d46..2043f98 100644
--- a/backends/s390_retval.c
+++ b/backends/s390_retval.c
@@ -87,7 +87,7 @@ s390_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
@@ -127,7 +127,7 @@ s390_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
return size <= asize ? nloc_intreg : nloc_intregpair;
}
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_structure_type:
case DW_TAG_class_type:
diff --git a/backends/sh_retval.c b/backends/sh_retval.c
index d44f260..33d7d96 100644
--- a/backends/sh_retval.c
+++ b/backends/sh_retval.c
@@ -84,7 +84,7 @@ sh_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
diff --git a/backends/sparc_retval.c b/backends/sparc_retval.c
index e1b1775..fb81cdc 100644
--- a/backends/sparc_retval.c
+++ b/backends/sparc_retval.c
@@ -91,7 +91,7 @@ sparc_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
diff --git a/backends/tilegx_retval.c b/backends/tilegx_retval.c
index db81a20..7f7d24b 100644
--- a/backends/tilegx_retval.c
+++ b/backends/tilegx_retval.c
@@ -79,7 +79,7 @@ tilegx_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
@@ -113,7 +113,7 @@ tilegx_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
return nloc_intreg;
}
- /* Else fall through. */
+ FALLTHROUGH;
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
diff --git a/backends/x86_64_regs.c b/backends/x86_64_regs.c
index 8430440..ef987da 100644
--- a/backends/x86_64_regs.c
+++ b/backends/x86_64_regs.c
@@ -87,7 +87,7 @@ x86_64_register_info (Ebl *ebl __attribute__ ((unused)),
case 6 ... 7:
*type = DW_ATE_address;
- /* Fallthrough */
+ FALLTHROUGH;
case 0 ... 5:
name[0] = 'r';
name[1] = baseregs[regno][0];
diff --git a/backends/x86_64_retval.c b/backends/x86_64_retval.c
index b3799ae..f9114cb 100644
--- a/backends/x86_64_retval.c
+++ b/backends/x86_64_retval.c
@@ -100,7 +100,7 @@ x86_64_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
diff --git a/config/eu.am b/config/eu.am
index 8fe1e25..b6ec581 100644
--- a/config/eu.am
+++ b/config/eu.am
@@ -62,7 +62,9 @@ NULL_DEREFERENCE_WARNING=
endif
if HAVE_IMPLICIT_FALLTHROUGH_WARNING
-IMPLICIT_FALLTHROUGH_WARNING=-Wimplicit-fallthrough
+# Use strict fallthrough. Only __attribute__((fallthrough)) will prevent the
+# warning
+IMPLICIT_FALLTHROUGH_WARNING=-Wimplicit-fallthrough=5
else
IMPLICIT_FALLTHROUGH_WARNING=
endif
diff --git a/configure.ac b/configure.ac
index 1f1856d..698efbb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -360,6 +360,12 @@ CFLAGS="$old_CFLAGS"])
AM_CONDITIONAL(HAVE_IMPLICIT_FALLTHROUGH_WARNING,
[test "x$ac_cv_implicit_fallthrough" != "xno"])
+# Assume the fallthrough attribute is supported if -Wimplict-fallthrough is supported
+if test "$ac_cv_implicit_fallthrough" = "yes"; then
+ AC_DEFINE([HAVE_FALLTHROUGH], [1],
+ [Defined if __attribute__((fallthrough)) is supported])
+fi
+
dnl Check if we have argp available from our libc
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
diff --git a/lib/eu-config.h b/lib/eu-config.h
index 400cdc6..e8d4ec2 100644
--- a/lib/eu-config.h
+++ b/lib/eu-config.h
@@ -186,5 +186,12 @@ asm (".section predict_data, \"aw\"; .previous\n"
# define COMPAT_VERSION(name, version, prefix) error "should use #ifdef SYMBOL_VERSIONING"
#endif
+#ifndef FALLTHROUGH
+# ifdef HAVE_FALLTHROUGH
+# define FALLTHROUGH __attribute__ ((fallthrough))
+# else
+# define FALLTHROUGH ((void) 0)
+# endif
+#endif
#endif /* eu-config.h */
diff --git a/libcpu/i386_disasm.c b/libcpu/i386_disasm.c
index 60fd6d4..837a3a8 100644
--- a/libcpu/i386_disasm.c
+++ b/libcpu/i386_disasm.c
@@ -819,7 +819,7 @@ i386_disasm (Ebl *ebl __attribute__((unused)),
++param_start;
break;
}
- /* Fallthrough */
+ FALLTHROUGH;
default:
str = "";
assert (! "INVALID not handled");
diff --git a/libcpu/i386_parse.c b/libcpu/i386_parse.c
index ef1ac35..6fa7ce3 100644
--- a/libcpu/i386_parse.c
+++ b/libcpu/i386_parse.c
@@ -1047,7 +1047,7 @@ yytnamerr (char *yyres, const char *yystr)
case '\\':
if (*++yyp != '\\')
goto do_not_strip_quotes;
- /* Fall through. */
+ FALLTHROUGH;
default:
if (yyres)
yyres[yyn] = *yyp;
@@ -2042,7 +2042,7 @@ yyabortlab:
yyexhaustedlab:
yyerror (YY_("memory exhausted"));
yyresult = 2;
- /* Fall through. */
+ FALLTHROUGH;
#endif
yyreturn:
diff --git a/libdw/cfi.c b/libdw/cfi.c
index daa845f..341e055 100644
--- a/libdw/cfi.c
+++ b/libdw/cfi.c
@@ -138,7 +138,7 @@ execute_cfi (Dwarf_CFI *cache,
case DW_CFA_advance_loc1:
operand = *program++;
- /* Fallthrough */
+ FALLTHROUGH;
case DW_CFA_advance_loc + 0 ... DW_CFA_advance_loc + CFI_PRIMARY_MAX:
advance_loc:
loc += operand * cie->code_alignment_factor;
@@ -301,7 +301,7 @@ execute_cfi (Dwarf_CFI *cache,
case DW_CFA_restore_extended:
get_uleb128 (operand, program, end);
- /* Fallthrough */
+ FALLTHROUGH;
case DW_CFA_restore + 0 ... DW_CFA_restore + CFI_PRIMARY_MAX:
if (unlikely (abi_cfi) && likely (opcode == DW_CFA_restore))
diff --git a/libdw/dwarf_frame_register.c b/libdw/dwarf_frame_register.c
index 37e8e91..d0159fb 100644
--- a/libdw/dwarf_frame_register.c
+++ b/libdw/dwarf_frame_register.c
@@ -62,7 +62,7 @@ dwarf_frame_register (Dwarf_Frame *fs, int regno, Dwarf_Op *ops_mem,
/* Use the default rule for registers not yet mentioned in CFI. */
if (fs->cache->default_same_value)
goto same_value;
- /*FALLTHROUGH*/
+ FALLTHROUGH;
case reg_undefined:
/* The value is known to be unavailable. */
break;
diff --git a/libdwfl/dwfl_report_elf.c b/libdwfl/dwfl_report_elf.c
index 6950a37..3fc9384 100644
--- a/libdwfl/dwfl_report_elf.c
+++ b/libdwfl/dwfl_report_elf.c
@@ -174,7 +174,7 @@ __libdwfl_elf_address_range (Elf *elf, GElf_Addr base, bool add_p_vaddr,
/* An assigned base address is meaningless for these. */
base = 0;
add_p_vaddr = true;
- /* Fallthrough. */
+ FALLTHROUGH;
case ET_DYN:
default:;
size_t phnum;
diff --git a/libdwfl/frame_unwind.c b/libdwfl/frame_unwind.c
index 4dc9c43..eaea495 100644
--- a/libdwfl/frame_unwind.c
+++ b/libdwfl/frame_unwind.c
@@ -442,7 +442,7 @@ expr_eval (Dwfl_Frame *state, Dwarf_Frame *frame, const Dwarf_Op *ops,
}
if (val1 == 0)
break;
- /* FALLTHRU */
+ FALLTHROUGH;
case DW_OP_skip:;
Dwarf_Word offset = op->offset + 1 + 2 + (int16_t) op->number;
const Dwarf_Op *found = bsearch ((void *) (uintptr_t) offset, ops, nops,
diff --git a/libebl/eblobjnote.c b/libebl/eblobjnote.c
index f80a1a5..ca4f155 100644
--- a/libebl/eblobjnote.c
+++ b/libebl/eblobjnote.c
@@ -223,7 +223,7 @@ ebl_object_note (Ebl *ebl, const char *name, uint32_t type,
free (buf);
break;
}
- /* FALLTHROUGH */
+ FALLTHROUGH;
default:
/* Unknown type. */
diff --git a/libelf/elf32_updatenull.c b/libelf/elf32_updatenull.c
index a51bf70..5351518 100644
--- a/libelf/elf32_updatenull.c
+++ b/libelf/elf32_updatenull.c
@@ -232,7 +232,7 @@ __elfw2(LIBELFBITS,updatenull_wrlock) (Elf *elf, int *change_bop, size_t shnum)
__libelf_seterrno (ELF_E_GROUP_NOT_REL);
return -1;
}
- /* FALLTHROUGH */
+ FALLTHROUGH;
case SHT_SYMTAB_SHNDX:
sh_entsize = elf_typesize (32, ELF_T_WORD, 1);
break;
diff --git a/libelf/elf_begin.c b/libelf/elf_begin.c
index 6f85038..6de206a 100644
--- a/libelf/elf_begin.c
+++ b/libelf/elf_begin.c
@@ -582,7 +582,7 @@ read_unmmaped_file (int fildes, off_t offset, size_t maxsize, Elf_Cmd cmd,
? sizeof (Elf32_Ehdr) : sizeof (Elf64_Ehdr)))
return file_read_elf (fildes, NULL, mem.header, offset, maxsize, cmd,
parent);
- /* FALLTHROUGH */
+ FALLTHROUGH;
default:
break;
@@ -1097,7 +1097,7 @@ elf_begin (int fildes, Elf_Cmd cmd, Elf *ref)
retval = NULL;
break;
}
- /* FALLTHROUGH */
+ FALLTHROUGH;
case ELF_C_READ:
case ELF_C_READ_MMAP:
diff --git a/libelf/elf_cntl.c b/libelf/elf_cntl.c
index ab13ffb..fd68178 100644
--- a/libelf/elf_cntl.c
+++ b/libelf/elf_cntl.c
@@ -62,7 +62,7 @@ elf_cntl (Elf *elf, Elf_Cmd cmd)
result = -1;
break;
}
- /* FALLTHROUGH */
+ FALLTHROUGH;
case ELF_C_FDDONE:
/* Mark the file descriptor as not usable. */
diff --git a/src/addr2line.c b/src/addr2line.c
index ba414a7..444ee52 100644
--- a/src/addr2line.c
+++ b/src/addr2line.c
@@ -618,7 +618,7 @@ handle_address (const char *string, Dwfl *dwfl)
case 1:
addr = 0;
j = i;
- /* Fallthrough */
+ FALLTHROUGH;
case 2:
if (string[j] != '\0')
break;
diff --git a/src/elfcompress.c b/src/elfcompress.c
index 8e0d5c5..25378a4 100644
--- a/src/elfcompress.c
+++ b/src/elfcompress.c
@@ -149,7 +149,7 @@ parse_opt (int key, char *arg __attribute__ ((unused)),
N_("Only one input file allowed together with '-o'"));
/* We only use this for checking the number of arguments, we don't
actually want to consume them. */
- /* Fallthrough */
+ FALLTHROUGH;
default:
return ARGP_ERR_UNKNOWN;
}
diff --git a/src/elflint.c b/src/elflint.c
index 51e53c2..df1b3a0 100644
--- a/src/elflint.c
+++ b/src/elflint.c
@@ -1764,7 +1764,7 @@ section [%2d] '%s': entry %zu: pointer does not match address of section [%2d] '
if (dyn->d_tag < DT_ADDRRNGLO || dyn->d_tag > DT_ADDRRNGHI)
/* Value is no pointer. */
break;
- /* FALLTHROUGH */
+ FALLTHROUGH;
case DT_AUXILIARY:
case DT_FILTER:
@@ -3993,7 +3993,7 @@ section [%2zu] '%s': merge flag set but entry size is zero\n"),
case SHT_NOBITS:
if (is_debuginfo)
break;
- /* Fallthrough */
+ FALLTHROUGH;
default:
ERROR (gettext ("\
section [%2zu] '%s' has unexpected type %d for an executable section\n"),
@@ -4137,7 +4137,7 @@ section [%2zu] '%s': ELF header says this is the section header string table but
ERROR (gettext ("\
section [%2zu] '%s': relocatable files cannot have dynamic symbol tables\n"),
cnt, section_name (ebl, cnt));
- /* FALLTHROUGH */
+ FALLTHROUGH;
case SHT_SYMTAB:
check_symtab (ebl, ehdr, shdr, cnt);
break;
@@ -4336,7 +4336,7 @@ section [%2d] '%s': unknown core file note type %" PRIu32
if (nhdr.n_namesz == sizeof "Linux"
&& !memcmp (data->d_buf + name_offset, "Linux", sizeof "Linux"))
break;
- /* Fallthrough */
+ FALLTHROUGH;
default:
if (shndx == 0)
ERROR (gettext ("\
diff --git a/src/objdump.c b/src/objdump.c
index 860cfac..0dd9a6a 100644
--- a/src/objdump.c
+++ b/src/objdump.c
@@ -223,7 +223,7 @@ parse_opt (int key, char *arg,
}
/* We only use this for checking the number of arguments, we don't
actually want to consume them. */
- /* Fallthrough */
+ FALLTHROUGH;
default:
return ARGP_ERR_UNKNOWN;
}
diff --git a/src/readelf.c b/src/readelf.c
index 346eccd..6a27e7e 100644
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -465,7 +465,7 @@ parse_opt (int key, char *arg,
print_string_sections = true;
break;
}
- /* Fall through. */
+ FALLTHROUGH;
case 'x':
add_dump_section (arg, false);
any_control_option = true;
@@ -6029,7 +6029,7 @@ attr_callback (Dwarf_Attribute *attrp, void *arg)
dwarf_form_name (form), (uintmax_t) num);
return DWARF_CB_OK;
}
- /* else fallthrough */
+ FALLTHROUGH;
/* These cases always take a loclistptr and no constant. */
case DW_AT_location:
@@ -6195,7 +6195,7 @@ attr_callback (Dwarf_Attribute *attrp, void *arg)
print_block (block.length, block.data);
break;
}
- /* Fall through. */
+ FALLTHROUGH;
case DW_AT_location:
case DW_AT_data_location:
@@ -9227,7 +9227,7 @@ handle_auxv_note (Ebl *ebl, Elf *core, GElf_Word descsz, GElf_Off desc_pos)
printf (" %s\n", name);
break;
}
- /* Fall through */
+ FALLTHROUGH;
case 'x': /* hex */
case 'p': /* address */
case 's': /* address of string */
diff --git a/src/strings.c b/src/strings.c
index d214356..03d0f13 100644
--- a/src/strings.c
+++ b/src/strings.c
@@ -246,7 +246,7 @@ parse_opt (int key, char *arg,
case 'b':
case 'B':
big_endian = true;
- /* FALLTHROUGH */
+ FALLTHROUGH;
case 'l':
case 'L':
diff --git a/tests/backtrace.c b/tests/backtrace.c
index 21abe8a..f5dd761 100644
--- a/tests/backtrace.c
+++ b/tests/backtrace.c
@@ -127,7 +127,7 @@ callback_verify (pid_t tid, unsigned frameno, Dwarf_Addr pc,
assert (symname2 == NULL || strcmp (symname2, "jmp") != 0);
break;
}
- /* FALLTHRU */
+ FALLTHROUGH;
case 4:
/* Some simple frame unwinders get this wrong and think sigusr2
is calling itself again. Allow it and just pretend there is
diff --git a/tests/elfstrmerge.c b/tests/elfstrmerge.c
index 8d5b53c..62c549d 100644
--- a/tests/elfstrmerge.c
+++ b/tests/elfstrmerge.c
@@ -578,7 +578,8 @@ main (int argc, char **argv)
break;
case SHT_DYNAMIC:
- /* Fallthrough. There are string indexes in here, but
+ FALLTHROUGH;
+ /* There are string indexes in here, but
they (should) point to a allocated string table,
which we don't alter. */
default:
--
2.14.3
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